\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Appendix Table: Heckman two-step estimates for mother time/goods relative demand (MARRIED, 1-2 kids ages 0-12, 2002 and 2007)}
\begin{tabular}{l*{5}{c}}
\hline\hline
                    &\multicolumn{1}{c}{(1)}                &\multicolumn{1}{c}{(2)}                &\multicolumn{1}{c}{(3)}                &\multicolumn{1}{c}{(4)}                &\multicolumn{1}{c}{(5)}                \\
                    &\multicolumn{1}{c}{father only}        &\multicolumn{1}{c}{father only}        &\multicolumn{1}{c}{P\_c only}           &\multicolumn{1}{c}{Both}               &\multicolumn{1}{c}{Both, P(work) $ \geq $ .75}\\
                    &                          b/se         &                          b/se         &                          b/se         &                          b/se         &                          b/se         \\
\hline
ln\_tau\_m\_g\_exp\_ratio&                                       &                                       &                                       &                                       &                                       \\
$\ln(\tilde{W}\_{m,i})$&                         0.644\sym{***}&                         0.640\sym{***}&                         0.640\sym{***}&                         0.640\sym{***}&                         0.633\sym{***}\\
                    &                       (0.075)         &                       (0.075)         &                       (0.128)         &                       (0.075)         &                       (0.079)         \\
Mother HS grad      &                        -0.110         &                                       &                                       &                                       &                                       \\
                    &                       (0.248)         &                                       &                                       &                                       &                                       \\
Mother some coll.   &                        -0.335         &                        -0.230         &                        -0.559         &                        -0.237         &                        -0.148         \\
                    &                       (0.272)         &                       (0.127)         &                       (0.791)         &                       (0.126)         &                       (0.136)         \\
Mother coll+        &                        -0.472         &                        -0.361\sym{*}  &                        -0.846         &                        -0.371\sym{*}  &                        -0.302\sym{*}  \\
                    &                       (0.296)         &                       (0.147)         &                       (1.187)         &                       (0.146)         &                       (0.143)         \\
Mother's age        &                        -0.001         &                        -0.002         &                         0.016         &                        -0.001         &                        -0.004         \\
                    &                       (0.009)         &                       (0.009)         &                       (0.048)         &                       (0.009)         &                       (0.010)         \\
Mother white        &                        -0.073         &                        -0.084         &                         0.171         &                        -0.079         &                        -0.154         \\
                    &                       (0.111)         &                       (0.108)         &                       (0.651)         &                       (0.107)         &                       (0.112)         \\
Num children age 0-5&                         0.316\sym{*}  &                         0.311\sym{*}  &                         0.469         &                         0.315\sym{*}  &                         0.283         \\
                    &                       (0.126)         &                       (0.125)         &                       (0.467)         &                       (0.125)         &                       (0.149)         \\
Num of children     &                         0.105         &                         0.107         &                         0.176         &                         0.108         &                         0.116         \\
                    &                       (0.070)         &                       (0.069)         &                       (0.213)         &                       (0.069)         &                       (0.077)         \\
Child's age         &                        -0.134\sym{***}&                        -0.133\sym{***}&                        -0.171         &                        -0.134\sym{***}&                        -0.142\sym{***}\\
                    &                       (0.028)         &                       (0.027)         &                       (0.112)         &                       (0.027)         &                       (0.030)         \\
2002.year           &                         0.000         &                         0.000         &                         0.000         &                         0.000         &                         0.000         \\
                    &                           (.)         &                           (.)         &                           (.)         &                           (.)         &                           (.)         \\
2007.year           &                         0.090         &                         0.086         &                         0.336         &                         0.092         &                         0.084         \\
                    &                       (0.133)         &                       (0.133)         &                       (0.606)         &                       (0.133)         &                       (0.139)         \\
\_cons              &                         1.952\sym{***}&                         1.853\sym{***}&                         2.287         &                         1.865\sym{***}&                         2.036\sym{***}\\
                    &                       (0.469)         &                       (0.409)         &                       (1.409)         &                       (0.410)         &                       (0.435)         \\
\hline
pos\_hrs\_m           &                                       &                                       &                                       &                                       &                                       \\
Mother HS grad      &                         0.178         &                                       &                                       &                                       &                                       \\
                    &                       (0.234)         &                                       &                                       &                                       &                                       \\
Mother some coll.   &                         0.503\sym{*}  &                         0.347\sym{*}  &                         0.287\sym{*}  &                         0.343\sym{*}  &                         0.424\sym{*}  \\
                    &                       (0.248)         &                       (0.140)         &                       (0.126)         &                       (0.141)         &                       (0.168)         \\
Mother coll+        &                         0.781\sym{**} &                         0.625\sym{***}&                         0.453\sym{***}&                         0.619\sym{***}&                         0.669\sym{***}\\
                    &                       (0.256)         &                       (0.153)         &                       (0.126)         &                       (0.153)         &                       (0.185)         \\
Mother's age        &                        -0.014         &                        -0.013         &                        -0.019         &                        -0.015         &                        -0.018         \\
                    &                       (0.015)         &                       (0.015)         &                       (0.010)         &                       (0.015)         &                       (0.018)         \\
Mother white        &                        -0.185         &                        -0.173         &                        -0.268\sym{*}  &                        -0.192         &                        -0.157         \\
                    &                       (0.128)         &                       (0.127)         &                       (0.125)         &                       (0.128)         &                       (0.153)         \\
Num children age 0-5&                        -0.118         &                        -0.112         &                        -0.154         &                        -0.116         &                         0.170         \\
                    &                       (0.139)         &                       (0.139)         &                       (0.135)         &                       (0.139)         &                       (0.212)         \\
Num of children     &                        -0.041         &                        -0.048         &                        -0.061         &                        -0.047         &                        -0.073         \\
                    &                       (0.079)         &                       (0.079)         &                       (0.077)         &                       (0.079)         &                       (0.091)         \\
Child's age         &                         0.037         &                         0.038         &                         0.039         &                         0.039         &                         0.053         \\
                    &                       (0.032)         &                       (0.032)         &                       (0.031)         &                       (0.032)         &                       (0.038)         \\
2002.year           &                         0.000         &                         0.000         &                         0.000         &                         0.000         &                         0.000         \\
                    &                           (.)         &                           (.)         &                           (.)         &                           (.)         &                           (.)         \\
2007.year           &                        -0.266         &                        -0.275         &                        -0.219         &                        -0.288\sym{*}  &                        -0.264         \\
                    &                       (0.144)         &                       (0.143)         &                       (0.140)         &                       (0.144)         &                       (0.175)         \\
fed\_hs              &                         0.433\sym{*}  &                         0.478\sym{**} &                                       &                         0.494\sym{**} &                         0.616         \\
                    &                       (0.191)         &                       (0.182)         &                                       &                       (0.183)         &                       (0.388)         \\
fed\_scoll           &                         0.228         &                         0.269         &                                       &                         0.276         &                         0.338         \\
                    &                       (0.209)         &                       (0.202)         &                                       &                       (0.202)         &                       (0.397)         \\
fed\_collplus        &                        -0.174         &                        -0.137         &                                       &                        -0.135         &                        -0.198         \\
                    &                       (0.216)         &                       (0.210)         &                                       &                       (0.211)         &                       (0.411)         \\
f\_age               &                         0.007         &                         0.007         &                                       &                         0.007         &                         0.013         \\
                    &                       (0.013)         &                       (0.013)         &                                       &                       (0.013)         &                       (0.015)         \\
ln\_pchcare\_4ca      &                                       &                                       &                         0.082         &                         0.161         &                         0.116         \\
                    &                                       &                                       &                       (0.158)         &                       (0.162)         &                       (0.190)         \\
\_cons              &                         0.349         &                         0.460         &                         1.168\sym{*}  &                         0.330         &                         0.043         \\
                    &                       (0.512)         &                       (0.491)         &                       (0.458)         &                       (0.509)         &                       (0.660)         \\
\hline
/mills              &                                       &                                       &                                       &                                       &                                       \\
lambda              &                        -0.196         &                        -0.131         &                        -2.430         &                        -0.186         &                        -0.183         \\
                    &                       (0.455)         &                       (0.428)         &                       (5.697)         &                       (0.420)         &                       (0.427)         \\
\hline
N                   &                           756         &                           756         &                           771         &                           756         &                           610         \\
N\_selected          &                           582         &                           582         &                           593         &                           582         &                           491         \\
\hline\hline
\end{tabular}
\end{table}
